Boy do I know what you mean - is there such a thing as too many passionvines:D You say you have the maypop, do you mean the one native to our region, the P incarnata? This is the one I have all over and I love it:)

I'm extremely excited to grow Constance Elliot; would you be interested in exchanging cuttings? I have P caerulea or P 'Amethyst'.